Shoot him instead!
Being the evil overlord that you are, you can sacrifice a minion to “take an arrow” in your place. Or a spell, or anything else really that may cause damage
Evil alignment, a handy minion within 5 feet, like a goblin
As long as you have a minion within a 5 foot radius, you may after roll to hits have been made or targets declared, sacrifice the minion to “take one for the team”.
If no minion is present, then at the GMs discretion, a PC may be substituted instead.